Helicobacter pylori is a gram-negative bacterium that infects the lining of the stomach. It is often associated with gastrointestinal disorders such as stomach ulcers, gastritis and stomach cancer. There are several synonyms for the term "Helicobacter pylori" including H. pylori, Campylobacter pyloridis and even just pylori. In addition to these synonyms, some people refer to it simply as a stomach bacteria. Regardless of the name used, it is important to understand the impact that H. pylori can have on the body and seek appropriate treatment if necessary. This may include the use of antibiotics, acid reducers, or other medical interventions.